Igniting device for gas engines



2 sneets-snet 1.

T R E. K C E H W d. d 0 M 0 m TGNITING DEVICE EUR GAS ENGINES.

Z o .i u f. 0 m r d wm 1. w 5

m ,m p h! A un W d v l u@ m w u., .M HUI .L1 Lm 1 a@ P 1A. m !:l M .ma ymw www@ @@,J r| f 1 if; E hl E v .m 2. Q l .l f u lill I S u l 9 8. 1 o..0 M R m 0.,. .W WM., N F @J rn: noms Fz-rsns co., v

(No Model.)

W. HECKERI'. IGNITING DEVICE EOE GAS ENGINES. No. 425,879.

Patented Apr. 15, 1890.

nlllll" Swm (g1/mento Wzflam Eeckeri @2313V 11130 flboznm 2 Sheets-She't2. Y

UNITED STATES PATENT OEEICE.

WILLIAM I'IECKERT, OF YONKERS, ASSIGNOR TO THE KORTING GAS ENGINE iCOMPANY, (LIMITEDJ OF NEWT YORK, N. Y.

IGNITING lDEVICE FOR GAS-ENGINES.

SPECIFICATION forming part of Letters Patent No. 425,879, dated April15, 1890.

Application filed June 15, 1889. Renewed March 19, 1890,. Serial No.344,570.

(No model.)

T0 all whom it may concern:

Be it known that 1, WILLIAM HECKEET, a citizen of the United States,residing at Yonkers, in the county of IVestchester and State of New-York, have invented certain new and useful Improvements in IgnitingDevices for Gas-Engines; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention consists in a certain improved form of igniting device forgas-engines, hereinafter to be described and claimed.

` In the drawings, Figure 1 is a side view of a gas-engine, showing myignitor applied thereto, the end of the engine-shaft and the gearingattached thereto being removed. Fig. 2 is an edge view of the lever andcamroller for operating the ignitor. Fig. 3 is a side view of the samewith the cam shown in dotted lines and the igniting device shown insection. Fig. 4 is a longitudinal section and an end view of the hollowvalve-plunger in said ignitor. Fig. 5 is a longitudinal section and endview 'of the thimble; and Fig. 6 shows similar views of the barrel, allforming part of said ignitor. Fig. 7 is a detail view of a shield forthe igniting-j et.

The engine to which I have shown my invention applied is of similarconstruction to that described in applications, Serial Nos. 314,458 and314,459, iled on even date herewith, in which B is the main shaft, fromwhich suitably gearing E andC transmits motion to the cam-sleeve D',revolving on the stud O and carrying the cam D, all as shown in Fig. 1.

A is the engine-frame.

The lever E is mounted on the stud e and vibrated by means of thecam-roller c, resting against the cam D, and the spring F whichsurrounds the rod F, and is confined between the ange of theengine-frame and the adjustable nut f. The evident effect of thisgearing is to give the ignitor its necessary quick motion once in everytwo revolutions the charge of the engine at the .moment when is to beexploded.

The ignitor proper consists of the hollow thimble K, which is screwedinto the valvecasing Y of the engine and is in communication with thepassage leading to the enginecylinder, through which the ingoing chargeof gas and air is drawn. The flange K renders the joint gas-tightbetween the valve-casing Y and the thimble K. On the4 thimble is placedthe sliding barrel G, which has a cap G and the perforationsl'l. Intoanotch g is inserted the end of the cam-lever E, which transmits Inotionto the barrel of the ignitor 6o` at the proper moment. Vithin thethimble K is placed the hollow valve-plunger L, which has its seat L andits bored-out portion O. This interior portion is permanently incommunication with the interior of the valvecasing and thevalve-passages by means of the fine perforation M in the end of thevalveplunger. 'Vhen the valve-plunger is lifted from its seat, thelarger holes N N are uncovered by that motion. The valve-plunger 7o hasthe wings P I to guide it and the cutaway portions p to enable' the gasto flow around and get at the openings N..

In the cap G there is inserted an adjustable plug I, which strikesagainst the end of the hollow valve-plungerwhen the barrel G is moved,so as to close the end of the thimble K. On the end of this adjustableplugaprojection X, of any suitable incandescent material-such aslava--is placed so that when 8o the end of the thimble is closed by theplug I this incandescent tip is introduced into the interior of the.hollow valve-plunger L. An igniting-jet burns at the orifice S of thegaspipe R, which is controlled by the valve r, and the flame isprotected by the shield Q. The supply of gas for the running of theengine is admitted through the inlet-pipe T.

The method of operation in my invention is the following: Theigniting-jet from the 9o orifice S burns continuously, the flame passingthrough the perforations N through the barrel of the ignitor and keepingthe tip X in a state of incandescence. During the compression period ofthe engines cycle of operations a ne stream of gas and air will beforced through the perforation M into the interior O of the hollowvalve-plunger, and will be ignited by the igniting-jet; but theperforation M is so iine that it is impossible for Ioo the flame to betransmitted back through it, on the principle that flame is nottransmitted through fine apertures, as is well known from the operationof the Davies safety-lamp. At the proper moment the cam D reciprocatesthe barrel and the cap carrying the adjustable plug I as it closes theend of the thimble this, the incandescent tip X insures the ignition of`the gas which pours into the interiorof the valve-plunger when thelatter is lifted'oit its seat in the manner described, Aand renders theignition of the charge positive and uniform.

vI-Iavingtherefore described my invention, what I claim as new, anddesire to protect by Letters Patent, is

1. In an igniting device for gas-engines, the combination of the thimblewhose interior is in communication with the engine-cylinder, the hollowvalve-plunger seated in said thimble and provided with a tineperforation, by which the interior of the valve-plunger is keptpermanently in communication with the engine-cylinder, and also providedwith other large perforations, which are uncovered when the valve islifted E its seat, a barrel which slides on the thimble and terminatesin a cap, through which there are perforations for the passage of theigniting-j et, and an adj usti able plugr in the end of said cap, soarranged as to strike the endof the hollow valve-plan ger andto lift itfrom its seat, together with means for reciprocating said barrel,substan tially as described.

2. In an igniting device for gas-engines, the

vcombination of the thimble whose interior is in communication with theengine-cylinder, the hollow Valve-plunger seated in said thimble andprovided with a fine perforation, by which the interior of thevalve-plunger is permanently kept in communication with theengine-cylinder, and also providedwith other meansfor reciprocating saidbarrel, snbstan tially as described.

3. In an igniting device for gas-engines, the combination of the thimblewhose interior is .connected with the engine-cylinder, the hollowvalve-plunger seated inisaid thilnble and 4provided with a tineperforation, by which the interior of the valve-plunger is permanently`connected with the engine-cylinder, and also provided with other largerperforatio11s,wl1ich are uncovered when the valve is lifted oit itsseat, together with the tip of incandescent material, which isalternately introduced into the interior of said valveplun ger, therebylifting it from its seat, and withdrawn and exposed to aconstantly-burning `substantially as described.

jet of flame,

In testimony whereof I afix my signature in presence of two witnesses.

WILLIAM HECKERT. Witnesses: r

A. P. SMITH, WAsHN. DANENHowER.

